Service bulletin 2101721

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10230127
Published by NHTSA	2023-01-17
Manufacturer's number	2101721
Manufacturer's date	2021-05-20
NHTSA component	EXTERIOR LIGHTING; WHEELS; BACK OVER PREVENTION

NHTSA's summary

Power Transfer Unit (PTU) Broken Input Spline - X89 Warranty Extension This bulletin involves replacing the PTU assembly with an updated part. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1720-00 - Output Speed Sensor-Wheel Speed Rationality. P215C-00 - Output Shaft Speed Wheel Speed Correlation. The customer may also describe one or more of the following: Grinding noise coming from under the vehicle while driving. Vehicle will not move.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance, Lighting, Wheels, Backup camera

Trouble codes named

P1720, P215C

Vehicles listed
JEEP CHEROKEE	2014, 2015, 2016, 2017

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
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2302115	2023-01-09. Service bulletin. Squeak Noise Coming From The Rear Seat This bulletin involves applying tape to the rear seat track J-rail. The customer may describe a squeak noise coming from the rear seat, typically when the seat is unoccupied. The noise may be caused by metal to metal contact of the rear seat track J-rail.
2103315	2023-01-09. Service bulletin. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software followed by a drive validation. The following software enhancement, for the 948TE 9-speed transmission, is being released to improve diagnostics for the following Diagnostic Trouble Codes (DTCs): ? P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance ? P0887 - TCM Power Control Circuit High ? P1720 - Output Speed Sensor-Wheel Speed Rationality ? P1D98 - Incorrect Gear Ratio Clutch B or D Defective ? P215C - Output Shaft Speed Wheel Speed Correlation ? U0401 - Implausible Data Received From ECM-PCM The software also enables DTC P07A7 - Transmission Friction Element C Stuck On to set in the case of a dislodged C-clutch snap-ring.
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0200415	2023-01-09. Service bulletin. Cold Temperature Squeak/Creak Noise While Turning The Steering Wheel This bulletin involves applying Nye® lubricant to the front strut mounts. Customer may describe a creak or squeak noise while turning the steering wheel. Noise is typically more noticeable during cold temperatures below 4°C (40°F), noise may go away when temperature warms up.
0801615	2023-01-09. Service bulletin. Poor Radio Reception This bulletin involves replacing the satellite antenna if needed. A customer may experience, SXM (Sirius/XM) radio has intermittent muting. This occurs in areas where XM signal is degraded and cell signal is very weak. The condition happens when the optional vehicle internet connection through the cell network is in use with the internal vehicle Wi-Fi. This Symptom/Condition Only Applies To 2014-2015 KL Vehicles: A customer may experience a popping noise when listening to AM stations.
9003029	2023-01-09. Service bulletin. Part Description: Steering Column and Seals. Issue Description: If the customer complains of a steering column squeak when turning the wheel in low speed maneuvers (parking lot, driveway) in cold weather, the following inspection procedure will assist in preventing a misdiagnosis.~ Inspect the suspension front coil spring to isolators. This can be done by first letting the vehicle cold soak. The noise is normally heard in temperatures ranging from 15- 40 degrees (F). With one person in the vehicle turning the steering wheel, place your hand on the front spring. If a vibration is felt when the noise is heard by the vehicle occupant, the issue is from the front suspension ? not in the steering column. Do not service the steering column.
0805317	2022-10-31. Service bulletin. RA3 and RA4 Radio Enhancements This bulletin involves inspecting and if required, updating the radio software. Customers may experience one or more of the following:Radio functions/touchscreen locks up (does not affect backup camera). Phone presets do not save. ?Navigation Failed? message is displayed. Navigation is inoperative or inaccurate. CD player will not play songs and/or locks up the radio. Clock will not automatically update to local time. Clock may be off by several hours. (RA3 only). Poor or no connection to cellular network. ?Charge Complete? notification is not received (RU PHEV only). Some Uconnect® App remote commands do not execute with the vehicle. Radio Apps are inoperative. Radio display screen is black or blank. Battery drain - due to radio staying on. Navigation failed message is displayed. Clock not automatically updating to local time. Improvements:Auto Play can now be configured. Media devices, Phone pairing and Bluetooth® usage improvements. Add the ability to drag and drop icons into the menu bar. Adds ?Do Not Disturb? text message feature. Fix for radio locks up/frozen. Fix for radio loses time. Enhanced Voice recognition (VR) performance. Media devices, phone pairing and Bluetooth usage improvements. Improved tuner performance. Human Machine Interface (HMI) improvements. Satellite radio reception improvements.
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